bd13
New Member
i want to be able to turn off a relay when an alarm clock goes off, meaning that the relay is defaultly on and is wired so it is a latching relay (relay is a SPDT). i have been thinking about this but i don't know how to make the alarm clock turn off a relay, i need to use the speaker of the clock to do this and that pulses on and off. all i need is a circuit that will disrupt the current holding the relay on for a second (not literally) when the alarm goes off, this will turn the relay off and due to no power to turn it back on it will stay off. thanks in advance.